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/++
A module containing the logic for parsing and analysing the code coverage
Copyright: © 2017 Szabo Bogdan
License: Subject to the terms of the MIT license, as written in the included LICENSE.txt file.
Authors: Szabo Bogdan
+/
module trial.coverage;
import std.algorithm;
import std.range;
import std.string;
import std.stdio;
import std.conv;
import std.exception;
import std.file;
import std.path;
import std.math;
import trial.discovery.code;
version(D_Coverage) {
shared static this() {
import core.runtime;
if(exists("coverage")) {
writeln("Creating coverage folder...");
rmdirRecurse("coverage");
}
auto destination = buildPath("coverage", "raw").asAbsolutePath.array.idup.to!string;
mkdirRecurse(destination);
dmd_coverSetMerge(false);
//dmd_coverSourcePath(thisExePath);
dmd_coverDestPath(destination);
}
}
/// Converts coverage lst files to html
double convertLstFiles(string source, string destination, string packagePath, string packageName) {
auto htmlPath = buildPath(destination, "html");
if(!source.exists) {
return 0;
}
if(!htmlPath.exists) {
htmlPath.mkdirRecurse;
}
std.file.write(buildPath(htmlPath, "coverage.css"), import("templates/coverage.css"));
auto coverageData =
dirEntries(buildPath("coverage", "raw"), SpanMode.shallow)
.filter!(f => f.name.endsWith(".lst"))
.filter!(f => f.isFile)
.map!(a => readText(a.name))
.map!(a => a.toCoverageFile(packagePath)).array;
std.file.write(buildPath(htmlPath, "coverage-shield.svg"), coverageShield(coverageData.filter!"a.isInCurrentProject".array.coveragePercent.to!int.to!string));
std.file.write(buildPath(htmlPath, "index.html"), coverageData.toHtmlIndex(packageName));
foreach (data; coverageData) {
auto htmlFile = data.path.toCoverageHtmlFileName;
std.file.write(buildPath(htmlPath, htmlFile), data.toHtml);
}
return coverageData.coveragePercent;
}
string toCoverageHtmlFileName(string fileName) {
return fileName.replace("/", "-").replace("\\", "-") ~ ".html";
}
/// Get the line that contains the coverage summary
auto getCoverageSummary(string fileContent) {
auto lines = fileContent.splitLines.array;
std.algorithm.reverse(lines);
return lines
.filter!(a => a.indexOf('|') == -1 || a.indexOf('|') > 9)
.map!(a => a.strip)
.filter!(a => a != "");
}
/// It should get the coverage summary from the .lst file with no coverage
unittest {
"
| double threadUsage(uint index);
|}
core/cloud/source/cloud/system.d has no code
".getCoverageSummary.front.should.equal("core/cloud/source/cloud/system.d has no code");
}
/// It should get the coverage summary from the .lst file with missing data
unittest {
"
".getCoverageSummary.empty.should.equal(true);
}
/// It should get the coverage summary from the .lst file with percentage
unittest {
"
2| statusList[0].properties[\"thread1\"].value.should.startWith(\"1;\");
|}
core/cloud/source/cloud/system.d is 88% covered
".getCoverageSummary.front.should.equal("core/cloud/source/cloud/system.d is 88% covered");
}
/// Get the filename from the coverage summary
string getFileName(string fileContent) {
auto r = fileContent.getCoverageSummary;
if(r.empty) {
return "";
}
auto pos = r.front.lastIndexOf(".d");
return r.front[0..pos + 2];
}
version(unittest) {
version(Have_fluent_asserts) {
import fluent.asserts;
}
}
/// It should get the filename from the .lst file with no coverage
unittest {
"
| double threadUsage(uint index);
|}
core/cloud/source/cloud/system.d has no code
".getFileName.should.equal("core/cloud/source/cloud/system.d");
}
/// It should get the filename from the .lst file with no code
unittest {
"
".getFileName.should.equal("");
}
/// It should get the filename from the .lst file with percentage
unittest {
"
2| statusList[0].properties[\"thread1\"].value.should.startWith(\"1;\");
|}
core/cloud/source/cloud/system.d is 88% covered
".getFileName.should.equal("core/cloud/source/cloud/system.d");
}
/// Get the percentage from the covered summary
double getCoveragePercent(string fileContent) {
auto r = fileContent.getCoverageSummary;
if(r.empty) {
return 100;
}
auto pos = r.front.lastIndexOf('%');
if(pos == -1) {
return 100;
}
auto pos2 = r.front[0..pos].lastIndexOf(' ') + 1;
return r.front[pos2..pos].to!double;
}
/// It should get the filename from the .lst file with no coverage
unittest {
"
| double threadUsage(uint index);
|}
core/cloud/source/cloud/system.d has no code
".getCoveragePercent.should.equal(100);
}
/// It should get the filename from the .lst file with no code
unittest {
"
".getCoveragePercent.should.equal(100);
}
/// It should get the filename from the .lst file with percentage
unittest {
"
2| statusList[0].properties[\"thread1\"].value.should.startWith(\"1;\");
|}
core/cloud/source/cloud/system.d is 88% covered
".getCoveragePercent.should.equal(88);
}
/// The representation of a line from the .lst file
struct LineCoverage {
///
string code;
///
size_t hits;
///
bool hasCode;
@disable this();
///
this(string line) {
enforce(line.indexOf("\n") == -1, "You should provide a line");
line = line.strip;
auto column = line.indexOf("|");
if(column == -1) {
code = line;
} else if(column == 0) {
code = line[1..$];
} else {
hits = line[0..column].strip.to!size_t;
hasCode = true;
code = line[column + 1..$];
}
}
}
/// It should parse an empty line
unittest
{
auto lineCoverage = LineCoverage(` |`);
lineCoverage.code.should.equal("");
lineCoverage.hits.should.equal(0);
lineCoverage.hasCode.should.equal(false);
}
/// Parse the file lines
auto toCoverageLines(string fileContent) {
return fileContent
.splitLines
.filter!(a => a.indexOf('|') != -1 && a.indexOf('|') < 10)
.map!(a => a.strip)
.map!(a => LineCoverage(a));
}
/// It should convert a .lst file to covered line structs
unittest {
auto lines =
" |
|import std.stdio;
75| this(File f) {
| }
core/cloud/source/cloud/system.d is 88% covered
".toCoverageLines.array;
lines.length.should.equal(4);
lines[0].code.should.equal("");
lines[0].hits.should.equal(0);
lines[0].hasCode.should.equal(false);
lines[1].code.should.equal("import std.stdio;");
lines[1].hits.should.equal(0);
lines[1].hasCode.should.equal(false);
lines[2].code.should.equal(" this(File f) {");
lines[2].hits.should.equal(75);
lines[2].hasCode.should.equal(true);
lines[3].code.should.equal(" }");
lines[3].hits.should.equal(0);
lines[3].hasCode.should.equal(false);
}
/// Structure that represents one .lst file
struct CoveredFile {
/// The covered file path
string path;
/// Is true if the file is from the tested library and
/// false if is an external file
bool isInCurrentProject;
/// Is true if the file is set to be ignored
/// from the final report
bool isIgnored;
/// The module name
string moduleName;
/// The covered percent
double coveragePercent;
/// The file lines with coverage data
LineCoverage[] lines;
}
/// Check if a file should be ignored from the report
bool isIgnored(const string content) {
auto firstLine = content.splitter('\n');
if(firstLine.empty) {
return false;
}
auto smallCase = firstLine.front.strip.toLower;
auto pieces = smallCase.replace("\t", " ").splitter(' ').filter!(a => a != "").array;
if(pieces[0].indexOf("//") == -1 && pieces[0].indexOf("/*") == -1 && pieces[0].indexOf("/+") == -1) {
return false;
}
if(pieces.length == 2) {
return pieces[0].indexOf("ignore") != -1 && pieces[1] == "coverage";
}
if(pieces.length < 3) {
return false;
}
return pieces[1] == "ignore" && pieces[2] == "coverage";
}
/// It should return true for ignored coverage files
unittest {
"// IGNORE COVERAGE".isIgnored.should.equal(true);
"// \t IGNORE \t COVERAGE".isIgnored.should.equal(true);
"// ignore coverage".isIgnored.should.equal(true);
"//IGNORE COVERAGE".isIgnored.should.equal(true);
"/////IGNORE COVERAGE".isIgnored.should.equal(true);
"// IGNORE COVERAGE ".isIgnored.should.equal(true);
"/* IGNORE COVERAGE */".isIgnored.should.equal(true);
"/***** IGNORE COVERAGE ".isIgnored.should.equal(true);
"/***** IGNORE COVERAGE ****/".isIgnored.should.equal(true);
"/+ IGNORE COVERAGE +/".isIgnored.should.equal(true);
"/+++++ IGNORE COVERAGE ".isIgnored.should.equal(true);
"/+++++ IGNORE COVERAGE +++++/".isIgnored.should.equal(true);
}
/// It should return false for when the ignore coverage file is missing
unittest {
"".isIgnored.should.equal(false);
"//\nIGNORE COVERAGE".isIgnored.should.equal(false);
"//\nIGNORE COVERAGE".isIgnored.should.equal(false);
"/////\nIGNORE COVERAGE".isIgnored.should.equal(false);
"//\n IGNORE COVERAGE ".isIgnored.should.equal(false);
"/*\n IGNORE COVERAGE */".isIgnored.should.equal(false);
"/***** \n IGNORE COVERAGE ".isIgnored.should.equal(false);
"/***** \n IGNORE COVERAGE ****/".isIgnored.should.equal(false);
"/+ \n IGNORE COVERAGE +/".isIgnored.should.equal(false);
"/+++++ \n IGNORE COVERAGE ".isIgnored.should.equal(false);
"/+++++ \n IGNORE COVERAGE +++++/".isIgnored.should.equal(false);
"// IGNORE\nCOVERAGE".isIgnored.should.equal(false);
"//IGNORE\nCOVERAGE".isIgnored.should.equal(false);
}
/// Check if a file is in the current path
bool isPackagePath(string fullPath, string packagePath) {
if(fullPath.indexOf("/.trial/") != -1) {
return false;
}
if(fullPath.indexOf("trial_") != -1) {
return false;
}
if(fullPath.indexOf("submodules") != -1) {
return false;
}
if(fullPath.indexOf(packagePath) == 0) {
return true;
}
if(fullPath.replace("\\", "/").indexOf(packagePath) == 0) {
return true;
}
return false;
}
/// Check project paths
unittest {
"../../something.d".isPackagePath("/Users/trial/").should.equal(false);
"/Users/trial/trial_.d".isPackagePath("/Users/trial/").should.equal(false);
"/Users/trial/runner.d".isPackagePath("/Users/trial/").should.equal(true);
"/Users/trial/.trial/runner.d".isPackagePath("/Users/trial/").should.equal(false);
"C:\\Users\\trial\\runner.d".isPackagePath("C:/Users/trial/").should.equal(true);
}
/// Converts a .lst file content to a CoveredFile structure
CoveredFile toCoverageFile(string content, string packagePath) {
auto fileName = content.getFileName;
auto fullPath = buildNormalizedPath(getcwd, fileName);
return CoveredFile(
fileName,
fullPath.isPackagePath(packagePath),
content.isIgnored(),
getModuleName(fullPath),
getCoveragePercent(content),
content.toCoverageLines.array);
}
/// should convert a .lst file to CoveredFile structure
unittest {
auto result = ` |/++
| The main runner logic. You can find here some LifeCycle logic and test runner
| initalization
|+/
|module trial.runner;
|
| /// Send the begin run event to all listeners
| void begin(ulong testCount) {
23| lifecycleListeners.each!(a => a.begin(testCount));
| }
lifecycle/trial/runner.d is 74% covered
`.toCoverageFile(buildPath(getcwd, "lifecycle/trial"));
result.path.should.equal("lifecycle/trial/runner.d");
result.isInCurrentProject.should.equal(true);
result.moduleName.should.equal("trial.runner");
result.coveragePercent.should.equal(74);
result.lines.length.should.equal(10);
result.lines[0].code.should.equal("/++");
result.lines[9].code.should.equal(" }");
}
/// should mark the `trial_.d` file as external file
unittest {
auto result = `trial_package.d is 74% covered
`.toCoverageFile(buildPath(getcwd, "lifecycle/trial"));
result.isInCurrentProject.should.equal(false);
}
/// Generate the html for a line coverage
string toLineCoverage(T)(LineCoverage line, T index) {
return import("templates/coverageColumn.html")
.replaceVariable("hasCode", line.hasCode ? "has-code" : "")
.replaceVariable("hit", line.hits > 0 ? "hit" : "")
.replaceVariable("line", index.to!string)
.replaceVariable("hitCount", line.hits.to!string);
}
/// Render line coverage column
unittest {
LineCoverage(" |").toLineCoverage(1).should.contain([`<span class="line-number">1</span>`, `<span class="hit-count">0</span>`]);
LineCoverage(" |").toLineCoverage(1).should.not.contain(["has-code", `hit"`]);
LineCoverage(" 1|code").toLineCoverage(2).should.contain([ `<span class="line-number">2</span>`, `<span class="hit-count">1</span>`, "has-code", `hit"` ]);
}
/// Get the line coverage column for the html report
string toHtmlCoverage(LineCoverage[] lines) {
return lines.enumerate(1).map!(a => a[1].toLineCoverage(a[0])).array.join("").replace("\n", "");
}
/// Cont how many lines were hit
auto hitLines(LineCoverage[] lines) {
return lines.filter!(a => a.hits > 0).array.length;
}
/// Cont how many lines were hit
auto codeLines(LineCoverage[] lines) {
return lines.filter!(a => a.hasCode).array.length;
}
/// Replace an `{variable}` inside a string
string replaceVariable(const string page, const string key, const string value) pure {
return page.replace("{"~key~"}", value);
}
/// It should replace a variable inside a page
unittest {
`-{key}-`.replaceVariable("key", "value").should.equal("-value-");
}
/// wraps some string in a html page
string wrapToHtml(string content, string title) {
return import("templates/page.html").replaceVariable("content", content).replaceVariable("title", title);
}
///should replace the variables inside the page.html
unittest {
auto page = wrapToHtml("some content", "some title");
page.should.contain(`<title>some title</title>`);
page.should.contain("<body>\n some content\n</body>");
}
/// Create an html progress bar
string htmlProgress(string percent) {
return import("templates/progress.html").replaceVariable("percent", percent);
}
///should replace the variables inside the page.html
unittest {
htmlProgress("33").should.contain(`33%`);
htmlProgress("33").should.contain(`33% Covered`);
}
/// Generate the coverage page header
string coverageHeader(CoveredFile coveredFile) {
return import("templates/coverageHeader.html")
.replaceVariable("title", coveredFile.moduleName)
.replaceVariable("hitLines", coveredFile.lines.hitLines.to!string)
.replaceVariable("totalLines", coveredFile.lines.codeLines.to!string)
.replaceVariable("coveragePercent", coveredFile.coveragePercent.to!string)
.replaceVariable("pathPieces", pathSplitter(coveredFile.path).array.join(`</li><li>`));
}
/// Check variables for the coverage header
unittest {
CoveredFile coveredFile;
coveredFile.moduleName = "module.name";
coveredFile.coveragePercent = 30;
coveredFile.path = "a/b";
coveredFile.lines = [ LineCoverage(" 0| not code"), LineCoverage(" 1| some code") ];
auto header = coverageHeader(coveredFile);
header.should.contain(`<h1>module.name`);
header.should.contain(`1/2`);
header.should.contain(`30%`);
header.should.contain(`<li>a</li><li>b</li>`);
}
/// Convert a `CoveredFile` struct to html
string toHtml(CoveredFile coveredFile) {
return wrapToHtml(
coverageHeader(coveredFile) ~
import("templates/coverageBody.html")
.replaceVariable("lines", coveredFile.lines.toHtmlCoverage)
.replaceVariable("code", coveredFile.lines.map!(a => a.code.replace("<", "<").replace(">", ">")).array.join("\n")),
coveredFile.moduleName ~ " coverage"
);
}
/// Check variables for the coverage html
unittest {
CoveredFile coveredFile;
coveredFile.moduleName = "module.name";
coveredFile.coveragePercent = 30;
coveredFile.path = "a/b";
coveredFile.lines = [ LineCoverage(" 0| <not code>"), LineCoverage(" 1| some code") ];
auto html = toHtml(coveredFile);
html.should.contain(`<h1>module.name`);
html.should.contain(`<not code>`);
html.should.contain(`<title>module.name coverage</title>`);
html.should.contain(`hit"`);
}
string indexTable(string content) {
return import("templates/indexTable.html").replaceVariable("content", content);
}
string ignoredTable(string content) {
return import("templates/ignoredTable.html").replaceVariable("content", content);
}
/// Check if the table body is inserted
unittest {
indexTable("some content").should.contain(`<tbody>some content</tbody>`);
}
/// Calculate the coverage percent from the current project
double coveragePercent(CoveredFile[] coveredFiles) {
if(coveredFiles.length == 0) {
return 100;
}
double total = 0;
double covered = 0;
foreach(file; coveredFiles.filter!"a.isInCurrentProject".filter!"!a.isIgnored") {
total += file.lines.map!(a => a.hasCode ? 1 : 0).sum;
covered += file.lines.filter!(a => a.hasCode).map!(a => a.hits > 0 ? 1 : 0).sum;
}
if(total == 0) {
return 100;
}
return round((covered / total) * 10000) / 100;
}
/// No files are always 100% covered
unittest {
[].coveragePercent.should.equal(100);
}
/// check a 50% covered file
unittest {
auto coveredFile = CoveredFile("", true, false, "", 50, [ LineCoverage(" 75| this(File f)"), LineCoverage(" 0| this(File f)") ]);
[coveredFile].coveragePercent.should.equal(50);
}
/// check a 50% external covered file
unittest {
auto coveredFile = CoveredFile("", false, false, "", 0, [ LineCoverage(" 0| this(File f)"), LineCoverage(" 0| this(File f)") ]);
[coveredFile].coveragePercent.should.equal(100);
}
string toHtmlIndex(CoveredFile[] coveredFiles, string name) {
sort!("toUpper(a.path) < toUpper(b.path)", SwapStrategy.stable)(coveredFiles);
string content;
string table;
size_t totalHitLines;
size_t totalLines;
size_t ignoredLines;
int count;
foreach(file; coveredFiles.filter!"a.isInCurrentProject".filter!"!a.isIgnored") {
auto currentHitLines = file.lines.hitLines;
auto currentTotalLines = file.lines.codeLines;
table ~= `<tr>
<td><a href="` ~ file.path.toCoverageHtmlFileName ~ `">` ~ file.path ~ `</a></td>
<td>` ~ file.moduleName ~ `</td>
<td>` ~ file.lines.hitLines.to!string ~ `/` ~ currentTotalLines.to!string ~ `</td>
<td>` ~ file.coveragePercent.to!string.htmlProgress ~ `</td>
</tr>`;
totalHitLines += currentHitLines;
totalLines += currentTotalLines;
count++;
}
table ~= `<tr>
<th colspan="2">Total</td>
<th>` ~ totalHitLines.to!string ~ `/` ~ totalLines.to!string ~ `</td>
<th>` ~ coveredFiles.coveragePercent.to!string.htmlProgress ~ `</td>
</tr>`;
content ~= indexHeader(name) ~ table.indexTable;
/// Ignored files
table = "";
foreach(file; coveredFiles.filter!"a.isInCurrentProject".filter!"a.isIgnored") {
auto currentTotalLines = file.lines.codeLines;
table ~= `<tr>
<td><a href="` ~ file.path.toCoverageHtmlFileName ~ `">` ~ file.path ~ `</a></td>
<td>` ~ file.moduleName ~ `</td>
<td>` ~ currentTotalLines.to!string ~ `/` ~ totalLines.to!string ~ `</td>
</tr>`;
ignoredLines += currentTotalLines;
count++;
}
table ~= `<tr>
<th colspan="2">Total</td>
<th>` ~ ignoredLines.to!string ~ `/` ~ totalLines.to!string ~ `</td>
</tr>`;
content ~= `<h1>Ignored</h1>` ~ table.ignoredTable;
/// external files
table = "";
foreach(file; coveredFiles.filter!"!a.isInCurrentProject") {
table ~= `<tr>
<td><a href="` ~ file.path.toCoverageHtmlFileName ~ `">` ~ file.path ~ `</a></td>
<td>` ~ file.moduleName ~ `</td>
<td>` ~ file.lines.hitLines.to!string ~ `/` ~ file.lines.codeLines.to!string ~ `</td>
<td>` ~ file.coveragePercent.to!string.htmlProgress ~ `</td>
</tr>`;
}
content ~= `<h1>Dependencies</h1>` ~ table.indexTable;
content = `<div class="container">` ~ content ~ `</div>`;
return wrapToHtml(content, "Code Coverage report");
}
string indexHeader(string name) {
return `<h1>` ~ name ~ ` <img src="coverage-shield.svg"></h1>`;
}
/// Create line coverage shield as svg
string coverageShield(string percent) {
return import("templates/coverage.svg").replace("?%", percent ~ "%");
}
/// The line coverage shield should contain the percent
unittest {
coverageShield("30").should.contain("30%");
}